Home / 158,703.57-219,010.32-87,084.79

Finding the Fourth Proportional to 158,703.57, 219,010.32 and 87,084.79

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Solution

The fourth proportional to 158,703.57, 219,010.32 and 87,084.79 is: 120,176.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,703.57 : 219,010.32 = 87,084.79 : x
  2. Step 2: Convert to fraction form
    158,703.57/219,010.32 = 87,084.79/x
  3. Step 3: Cross multiply
    158,703.57x = 219,010.32 × 87,084.79
  4. Step 4: Simplify right side
    158,703.57x = 19,072,467,725.03
  5. Step 5: Solve for x
    x = 19,072,467,725.03/158,703.57
  6. Step 6: Final answer
    x = 120,176.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.